CN107402511A - Vibration abatement for watch and clock movement - Google Patents
Vibration abatement for watch and clock movement Download PDFInfo
- Publication number
- CN107402511A CN107402511A CN201710347592.8A CN201710347592A CN107402511A CN 107402511 A CN107402511 A CN 107402511A CN 201710347592 A CN201710347592 A CN 201710347592A CN 107402511 A CN107402511 A CN 107402511A
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- Prior art keywords
- vibration abatement
- magnet
- watch
- magnets
- elastic component
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/02—Shock-damping bearings
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B29/00—Frameworks
- G04B29/02—Plates; Bridges; Cocks
- G04B29/022—Bridges
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/02—Shock-damping bearings
- G04B31/04—Shock-damping bearings with jewel hole and cap jewel
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of watch and clock movement, including pivoting member (24), for the pivoting member pivot bearing (28) and the vibration abatement associated with the bearing (30), the vibration abatement (30) includes elastic component (32), and the elastic component is arranged to apply restoring force at least one end stone (36).The vibration abatement also includes magnetic systems (40), the magnetic systems include two magnets and high magnetic permeability element (46) with opposite polarity, the high magnetic permeability element is arranged between the two magnets and is fixed to one of them, two magnets are respectively fixed to the supporting member of vibration abatement and the elastic component, and it is arranged between them that the first section of the possible shift length of end stone produces total magnetic attracting force in case of shock in association with high magnetic permeability element, total magnetic repulsive force is produced with the second section in the shift length, second section corresponds to the separation distance bigger than separation distance corresponding to the first section.
Description
Technical field
The present invention relates to the vibration abatement for clock and watch.Pivoting member of this vibration abatement generally with guiding watch and clock movement
The bearing of particularly escapement rotation is associated.They are also called vibration absorbing device, damper or shock absorbing member.The present invention
The suppression for the axial vibrations for relating more specifically to be subjected to pivoting member and applying caused by during this axial vibrations
The mechanical stress being added on pivot.
Background technology
Common clock and watch vibration abatement includes elastic component, and the elastic component is supported on the bearing including the vibration abatement at least
Apply pressure on one end stone or to the end stone, the end stone forms the retainer of pivot, and the pivot is along related pivoting member
The direction of rotation axis is inserted in the bearing.When pivot is pressed against end stone in the case of a shock, the vibration abatement is arranged to
Restoring force is enough produced in associated pivot by end stone.It should be appreciated that " end stone (endstone) " refers to by any appropriate material
Expect any structure of axial support surfaces that are manufactured, defining pivot.
This vibration abatement generally includes mechanical spring, and according to Practical Rules, the size of the mechanical spring is rule of thumb true
Determine into the mechanical stability in work and to realizing best trade off between the elastic resistance of mechanically deform.It is indeed desired to have
There is the shock absorbing member that rigidity is larger, it will not cause the axial movement of pivoting member under shock conditions small every time, simultaneously
Ensure the shock absorption functionality to sharp pounding, the sharp pounding can cause the big axial direction for the pivoting member that may damage pivot
It is (positive or negative) to accelerate.
Especially, the tradition for hair-spring balance, " parachute (parachutes) " and Lyre spring (lyre-spring)
Vibration abatement be sized to so that due to the spring for forming these " parachutes " and Lyre spring prestressing force (this it is pre- should
Power defines threshold value), their quilts only in higher oscillatory acceleration (between 200g and 500g, g is earth acceleration)
Actuating.During more than the threshold value, spring can deform and absorb part vibration energy.However, due to used metal strip part
Low mechanical shock absorbability, most of energy are recycled to escapement.Even for less vibrations, balance pivot also by
This is likely to local deformation.This deformation has considerable influence to the accuracy of timekeeping of wrist-watch, and due to following one meter
The certification timing criteria of the timing stability of the wrist-watch of vibrations is not strict (difference is 60 seconds/day), and this deformation is typically ignored.
The content of the invention
It is an object of the present invention to provide a kind of watch and clock movement equipped with least one effective vibration abatement, its is right
Solution is provided in the problem of damage pivot in the case of even sharp pounding occurs for vibrations.
Therefore, the present invention relates to a kind of watch and clock movement as defined in claim 1.
Due to the feature of the invention that will be described in more detail below, the vibration abatement has smaller for stronger vibrations
Resistance, and for it is less vibrations ensure that good stability.In fact, the rigidity according to the vibration abatement of the present invention
Mean that it no longer behaves like that mechanical spring is the same, wherein the mechanical spring produce substantially with the axial displacement of end stone into than
The restoring force of example.On the contrary, when displacement is zero, it applies higher power, then the power can at least shaken as caused by end stone
Reduce on the initial part of dynamic decay stroke.
In a main embodiment, the first and second magnets and high magnetic permeability element are in the rotation substantially with pivoting member
Shaft axis align on parallel direction, and the first and second magnets have opposite polarity in this direction.
In an advantageous variant, the high magnetic permeability element is fixed to the first magnet.
Brief description of the drawings
It is of the invention below with reference to the accompanying drawing description provided by non-limiting example, in figure：
- Fig. 1 is the perspective bottom view according to the vibration abatement of the first embodiment of the present invention.
- Fig. 2 is that the watch and clock movement of the vibration abatement comprising Fig. 1 passes through the partial sectional view of the vibration abatement.
- Fig. 3 is the broken section of the magnetic systems similar to the magnetic systems included in the vibration abatement of the present invention
Side view.
- Fig. 4 shows that the magnetic systems for Fig. 3 according to the distance of portable magnet and ferromagnetism disk, are applied to movement
The curve map of total magnetic force on formula magnet.
- Fig. 5 shows the curve map for the elastic force being applied to by the leaf spring of Fig. 1 vibration abatement on the pivot of pivoting member, with
And the curve map of the total power applied by vibration abatement according to the pivot for bearing against end stone along the displacement of its rotation axis.
- Fig. 6 is the top view of vibration abatement according to the second embodiment of the present invention.
- Fig. 7 is the partial sectional view through the vibration abatement of the watch and clock movement of the vibration abatement comprising Fig. 6.
- Fig. 8 shows the song of the elastic force applied by the Lyre spring of Fig. 6 and 7 vibration abatement on the pivot of pivoting member
Line chart, and the song of the total power applied by vibration abatement according to the pivot for bearing against end stone along the displacement of its rotation axis
Line chart.
Embodiment
Referring to figs. 1 to 5, the first embodiment of watch and clock movement 22 is described below, the watch and clock movement 22 includes pivoting member
24th, bearing 28 and the vibration abatement 30 associated with the bearing, the pivot 26 of pivoting member are arranged in the bearing 28.
Usually, vibration abatement 30 is included in the elastic component 32 of applying power on end stone 36, and the end stone 36 is formed for pivot
26 retainer on the direction of the rotation axis of pivoting member.When pivot is pressed against end stone in the case of a shock, this is shockproof
Device is arranged to produce restoring force on pivot 26 by end stone.According to the present invention, vibration abatement also includes magnetic systems
40, the magnetic systems 40 include two magnets 42,44 and high magnetic permeability element 46, and the high magnetic permeability element 46 is arranged in the two
Between magnet and it is fixed to one of magnet.The two magnets are respectively fixed to the supporting member 48 and elastic component of vibration abatement
32, so that (especially when certain vibrations occur) is when elastic component is temporarily subjected under the certain pressure applied by pivot to end stone
During elastic deformation, assign the relative motion on certain relative distance D between the two magnets (with reference to figure 3).More specifically,
The magnet 44 integral with elastic component is arranged to：In the case of stronger axial vibrations occur in pivoting member, carry out repeatedly
Motion, the motion are represented by four-headed arrow in fig. 2.When not shaking, elastic component is in the position of rest determined, carrying
The magnet of the elastic component is also such.It will be noted that in the position of rest, elastic component may have initial elasticity deformation.Herein
In the case of, elastic component is referred to as " being prestressed ".
In a manner of one kind is unusual and very favorable, following article will be with reference to described in figure 3 and 4, two magnets 42 and 44
It is arranged to produce total magnetic suction in the first section of above-mentioned relative distance in association with high magnetic permeability element 46 between them
Gravitation, and total magnetic repulsive force is produced in the second section of the relative distance, second section corresponds to the first and second magnets
Between ratio correspond to the bigger separation distance (the reference E in Fig. 3) of separation distance of the first section.In addition, magnetic system
System 40 and elastic component 32 are arranged so that for whole relative distance, in the case of a shock by vibration abatement on pivot 26
The total power applied remains certain restoring force.
The specific modification of first embodiment shown in Fig. 2 is as follows：
- high magnetic permeability element 46 is fixed on the magnet 42 integral with supporting member 48；
- high magnetic permeability element is made up of plate, and the plate has the central axis substantially overlapped with the magnetization axis of magnet 42；
- when elastic component is in its position of rest, two magnets 42,44 and high magnetic permeability magnet 46 along substantially with pivot
Turn the parallel direction alignment of the rotation axis 50 of element 24；
- magnet 42 and 44 has opposite polarity along its alignment direction.
Especially, the modification according to Fig. 1 and 2, two magnets are cylindrical, and the plate is for example by ferromagnetic
The form of property disk made of material.
With reference to figure 3 and 4, magnetic systems 40 and its operation is described below.Therefore, Fig. 3 show it is similar to magnetic systems 40
Magnetic systems 52.Therefore, magnetic systems 52 include the first magnet 4, the magnet 8 of high magnetic permeability element 6 and second, the high magnetic permeability
Element 6 is integrally formed with the first magnet, and second magnet 8 can be along displacement axis relative to by the first magnet 4 and the structure of element 6
Into component movement.As described above, element 6 is arranged between the first magnet and the second magnet, with the first magnet contact or close.
Especially, element 6 is attached on the first magnet, as shown in Figure 3.In another modification, the first magnet can be pressed into high saturating magnetic
In property element, in the case, the high magnetic permeability element for example with cylindrical housings form, the housing be open at one end with
Receive the first magnet.In an advantageous variant, the distance between element 6 and the magnet 4 that is integral with are less than or substantially
It is upper to magnetize 1/10th of the length of axis along it equal to magnet.First magnet 4 and element 6 form first of magnetic systems
Point, the second magnet 8 forms the Part II of the system.Element 6 is for example made up of following：Carbon steel, tungsten carbide, nickel, FeSi or
FeNi or other there is the alloy of cobalt, such as(CoFeNi) or(CoFe).In a favourable change
In type, the high magnetic permeability element is made up of iron or cobalt-based glassy metal.Element 6 is characterised by saturation magnetic field BSWith magnetic susceptibility μ.
Magnet 4 and 8 is for example made up of ferrite, FeCo or PtCo, such as NdFeB or SmCo rare earth material.The feature of these magnets
It is its remnant field Br1 and Br2.
High magnetic permeability element 6 has a central axis 10, the central axis 10 substantially with the magnetization axis of the first magnet 4 with
And the magnetization axis also with the second magnet 8 overlaps.The 4 and 8 respective direction of magnetization of magnet is opposite.These first and second magnets by
This has opposite polarity, and they can carry out the relative motion on certain relative distance D between them.Scheming
In example shown in 3, magnet 4 is fixed, and magnet 8 is removable, so as to the direction substantially edge of the relative motion between them
Central axis 10, thus the central axis 10 defines displacement axis.It will be noted that axis 10 is straight line, but this is one
Individual non-limiting modification.In the first embodiment of the present invention, displacement axis are substantially circular arc, the central axis base of element 46
It is tangent with the displacement axis of the bending in sheet.In this case, it is approximate as first, behavior and the magnetic system of magnetic systems 40
The behavior of system 52 is similar.If radius of curvature is in larger distance relative to the maximum possible between element 46 and magnet 44, such as this
The situation of the first embodiment of invention, then it is even more so.In an advantageous variant, as shown in figure 3, element 6 is in central axis
Size on 10 orthogonal plane is bigger than the size that the first magnet 4 and the second magnet 8 project on the orthogonal plane.It will pay attention to
Arrive, in the case where being moved to rest element 6 at the end of the second magnet attracts stroke in magnetic, the second magnet advantageously has hard
The thin layer that the surface of change or the hard material at its surface are formed.
Two magnets 4 and 8 are arranged to magnetic repulsion so that in no high magnetic permeability element 6, repulsive force tends to make this
Two magnets move away from each other.
Surprisingly, however, element 6 is arranged such that between the two magnets the first and second of magnetic systems
Part it is apart it is very short apart from when, the magnetic force between them is reverse, therefore total magnetic is then produced between the two parts
Property attraction.Fig. 4 is curve map, and its curve 54 is represented between the first and second parts of magnetic systems 52 according to two magnets
Separation distance E or the magnetic interaction power according to the relative distance D between portable magnet 8 and high magnetic permeability element 6.Can
It was observed that magnet 8 is totally subjected to magnetic attracting force on the first section D1 of the relative distance, the magnetic attracting force tends to
Magnet 8 is held against element 6, or tend to make magnet 8 return towards element 6 if they move separation.Secondly, member
Part 6 and two magnets are arranged so that the second magnet 8 is totally subjected to magnetic repulsion on the second section D2 of above-mentioned relative distance
Power.Between the first and second parts corresponding to second section separation distance (thus corresponding element 6 and magnet 8 it
Between distance D) be more than corresponding to the relative distance the first section separation distance.Second section is by ultimate range Dmax's
Limitation, ultimate range DmaxGenerally limited by the retainer for the separation distance for limiting portable magnet.
Total magnetic force is the continuous function of distance between part, and in distance DinvPlace has null value.Therefore, when the He of magnet 8
The distance between element 6 is more than distance DinvWhen, the magnet is subjected to total magnetic repulsive force, and total magnetic repulsive force tends to make member
Part 6 moves away from.However, when the distance between element 6 and portable magnet 8 are less than distance DinvWhen, magnet 8 is subjected to total magnetic
Attraction, total magnetic attracting force tend to make magnet 8 move close to element 6, without resistance, then connect magnet 8
Touch element 6 and then keep magnet 8 in this position.This is a characteristic function of magnetic systems 52, and it is according to this hair
Used well in bright vibration abatement.Reversely distance DinvBy the geometry knot for three magnetic parts for forming magnetic systems
Structure and its magnetic behavior determine.
Will be described in greater detail hereinafter according to the vibration abatement 30 of first embodiment and its according to the present invention by with magnetic
Behavior caused by the combination of system 40.Elastic component 32 is made up of the leaf spring with the end 58 of first end 56 and second, and first end is borrowed
Help screw 60 and be fixed to supporting member 48, the second end carries the second magnet 44.According to an Advantageous variants, put down in the totality of leaf spring
In the projection in face, end stone 36 positions between the first and the second ends.Bearing 28 includes base portion 62, and the base portion 62 is fixedly placed on
In opening in supporting member 48.The heart has hole to the base portion wherein in a conventional manner, and pivot 26 enters in the hole.Pivoting member
24 ((not indicated) for balance staff herein) have supporting surface 70, and the supporting surface 70 limits the element along axle in a conventional manner
The displacement of line 50, the supporting surface 70 are moved to against the surface limited by base portion at the periphery in the hole.Bearing 28 also wraps
Base 64 is included, end stone 36 is inserted in the base 64.In shown modification, this is magnetic bearing.Therefore, the base also carries magnetic
Body 66 and closing jewel part (closing jewel) 68.The part of the base or vibration abatement.It is arranged in by base portion 62
With fixed to supporting member 48 closed plate 72 form shell chamber in, so as in the case where shaking when supporting surface 70 moves
During to against base portion, the base carries out the axial movement at least on certain distance, and the distance corresponds to what pivot 26 can be carried out
Maximum displacement.Short tube 74 is fixed to leaf spring 32 in the side of end 58 of leaf spring 32, to rest against base or closing jewel part.It is shockproof
Device is acted on via the pipe on the component integral with end stone.It will be noted that the invention is not restricted to magnetic bearing.Therefore, exist
In another modification, there is traditional bearing, the traditional bearing has the base comprising gem hole and end stone, and the end stone there can be face
To the flat surfaces of pivot.
The magnetic systems and elastic component are arranged so that the position of rest in vibration abatement, end stone or the bottom for fixing the end stone
Seat keeps resting against the base portion of bearing support or bearing, meanwhile, the power applied by associated pivot to end stone is less than limiting value, should
Limiting value preferably more than acts on gravity of the pivoting member especially on hair-spring balance.In a specific modification, elastic component
It is prestressed in the position of rest of vibration abatement, so as to be applied by the moving element for being subjected to axially accelerating in the case of a shock
Power bigger numerical scope on, end stone remains stationary is motionless.
Fig. 5 represents the displacement along its rotation axis 50 according to pivot 26 that is end stone and thus resting against the end stone
The curve map of DP, the curve map of the elastic force applied by leaf spring 32 and the total power applied by vibration abatement 30.It will be noted that in displacement
Linear relationship between DP and the distance D of above-mentioned magnetic systems 40 be present (first is approximate).In known manner, elastic force is with displacement DP
Proportionally change.Its curve map is affine line (affine line) 76 shown in broken lines.Curve 78 is provided by shockproof
Total power that device applies on the component of carrying end stone and thus on the pivot 26 for rest against the end stone according to its displacement DP
Curve map, it corresponds to elastic force and the total magnetic force sum as caused by magnetic systems 40.It can be observed, on the first section DP1,
Total power (restoring force) is more than elastic force, wherein distance DPs of the first section DP1 in the position of rest corresponding to vibration abatementRWith
The distance DP for the end stone position for being zero corresponding to the total magnetic force being wherein applied on magnet 44invBetween.Then, in distance DPinv
With distance DPmax(in distance DPmaxPlace, balance staff 24 are only against the outer surface in the hole in the base portion of bearing) between, total power
Less than elastic force, because total magnetic force now resists elastic force, this reduce the total power being applied on the pivot of pivoting member.
The behavioral trait of brilliance is shown according to the vibration abatement of the present invention, as illustrated by plot 78.At least for end stone
Less than DPinvShift length, the distance DP when the power applied on the pivot for rest against end stone is stopped for vibration abatementR
It is maximum.Once the power that pivot applies to end stone increases to more than the maximum for the position of rest of vibration abatement, then hold in the palm
Brill is removed from its position of rest, and the total power now applied to pivot 26 reduces quickly, and this ensure that the larger of end stone at once
Movement and the good shock attenuation for stop position.In the example that Fig. 5 is provided, leaf spring has the rigidity that is near the mark
Rigidity, but compared with standard prestressing force, its prestressing force is reduced by about 30% to 40% coefficient, while in its position of rest
Vibration abatement provide the stability of standard.
Total power allows following grasp to pivot according to the dependence of the corresponding displacement of the axial displacement of escapement and vibration abatement
Make (escapement for the weight with about 40mg and between two magnets of magnetic systems made of ferrimagnet
The modification of element)：
1) for the acceleration shock less than 400g, due to the prestressing force of superimposed magnetic attracting force and spring, shockproof dress
Put and remain stationary as.
2) for the vibrations more than 400g, particularly 1000g, portable magnet and the ferromagnetic component point of spring load
From magnetic force reduces rapidly and subsequently reverse direction, in this case, resists the elastic force applied by spring.Once already exceed anti-
The axial movement actuating threshold force of device is shaken, then because the deformation of vibration abatement becomes highly significant at once and allows escapement non-
Mechanical stopping piece is rapidly often reached, it is total to make a concerted effort at least in the possible displacement of major part of pivot to reduce.This allows escapement
Kinetic energy is absorbed, while limits the power applied on whole shock attenuation stroke to pivot.
Once vibrations terminate, because total power remains just (restoring force) and exceedes frictional force, therefore vibration abatement can return
Return its initial position.The magnetic force occurred when portable magnet is moved to and sufficiently closes to ferromagnetic element reversely while ensure that machinery
The sluggish centering again being wholly absent with bearing after vibrations.
Following advantages are obtained from the feature of the vibration abatement according to the present invention：
- the vibration abatement works (different from traditional vibration abatement) as real shock absorbing member；
- by optimizing prestressing force (and thus operation when needing bearing stability to small vibrations) and to big shake
Dynamic damping response determines the possibility of the size of vibration abatement；
- after big vibrations, ensure to make vibration abatement reposition in its given position of stopping by magnetic attracting force
Put and make and (limit the rotation axis of escapement) base to be felt relieved again；
- vibration abatement is preferably in total power caused by its position of rest due to maximum, force, in the case of big vibrations
The power that balance staff is subject to reduces.
With reference to figure 6 to 8, the watch and clock movement for including the second embodiment according to vibration abatement of the invention is described below
82.Bearing and vibration abatement associated there 86 are arranged in the opening in plate 84.Elastic component 88 is with Liang Ge branches 89
With 90 Lyre spring, the Lyre spring is arranged to apply pressure on end stone 36A.In a modification (not shown), two
Branch is pressed on the base that end stone is fixed thereon.Vibration abatement includes the first magnetic systems 40A and the second magnetic systems 40B,
Each magnetic systems 40A and 40B is similar to the magnetic systems 40 described on first embodiment.Therefore, this is will not be described again here
The remarkable operation of two magnetic systems.
Two magnetic systems are associated with two structures 92 and 94 respectively, and the structure 92 and 94 substantially divide therebetween by region
Gu Dingdao not Liang Ge branches 89 and 90.The two structures carry two magnets 44A and 44B, each magnet 44A and 44B difference respectively
Form the portable magnet of respective magnetic system.Therefore, Liang Ge branches are associated with the first and second magnetic systems respectively, and
Each carry portable magnet 44A and 44B respectively via structure 92 and 94, the portable magnet 44A and 44B respectively with it is fixed
Magnet 42A and 42B coordinate.Each magnetic systems respectively further comprise high magnetic permeability element 46A, 46B, the high magnetic permeability element 46A,
46B and the fixed magnet of corresponding magnetic systems are integral.
It will be noted that each branch 89,90 of Lyre spring in a conventional manner its both ends by bearing base portion 62A it is upper
The part of the angled protrusion of portion's ring is axially kept.Therefore, when being stressed, Lyre spring is in the centre of these branches
Region is subjected to maximum flexibility deformation.It will additionally note that, each branch is pressed on end stone in the middle substantially.Preferably, but with non-limit
Property mode processed, two structures 92 and 94 are integrally formed with Lyre spring, and especially by bigger thickness and with than phase
The bigger rigidity of the rigidity of branch is answered, as shown in the figure.However, in another modification, the structure has and Lyre spring branch phase
Same thickness, in order to manufacture, but has bigger cross section.However, in another modification, portable magnet bearing structure
Rigidity be not larger than the rigidity of branch, therefore under big shock conditions, portable magnet carries out longer stroke than end stone.
Two magnetic systems with two associated arrangements of elastic Lyre spring branch are respectively in a symmetrical manner favourable
, because for the identical elastic deformation of Liang Ge branches, this arrangement Shi Ge branches are on end stone or more generally in movement
Apply identical pressure on formula bearing assembly 96.Thus in the case of axial vibrations, vertical with the rotation axis of escapement
Vibration abatement particularly end stone 36A consistent behavioral trait is maintained on general layout.
Fig. 8 show the elastic force that is applied by Lyre spring to end stone and thus on the pivot 26 for resting against the end stone with
The curve 76A of the change of the axial displacement of end stone, and the total power applied by vibration abatement 86 on pivot is with the axial direction
The curve 100 of the change of displacement.It will be noted that shown modification does not especially provide vibration abatement in the position of rest of vibration abatement
Mechanical prestress；Only there is magnetic attracting force, its vibration abatement in certain maximum static force until vibration abatement
It ensure that vibration abatement vibration abatement is quiet in static state operation scope (position of rest for here corresponding to null displacement DP)
It is only motionless.Magnetic force causes in the advantage of position of rest once vibration abatement enters its dynamic operating range and once thus it sticks up
When rising, total power can be lowered far enough to below the maximum, force of quiescent conditions.This allows to ensure to the pivot for resting against end stone
The maximum, force of application is maximum, force of the vibration abatement in non-tilting state.Therefore, pivot is being caused due to big axial vibrations
When mobile suddenly, escapement displacement, less resistance is subjected to, until it encounters the retainer being made up of the base portion of bearing.It will pay attention to
Arrive, by acting on the ring bearing surface of balance staff 24, the retainer can protect balance staff in the case of sharp pounding.
Finally, the rigidity of Lyre spring and two magnetic systems are dimensioned so that the sum total applied by vibration abatement
Try hard to keep and stay the restoring force higher than frictional force, so as to produce than under quiescent conditions on mobile type axial bearing assembly 96 caused by
After the vibrations of the higher power of maximum, force, ensure vibration abatement return its initial position and the moving assembly it is appropriate again
Centering (is used for the important performance for ensureing the good timing of watch and clock movement).
It will be noted that advantageously, in a second embodiment, two bearings of hair-spring balance are equipped with the vibrations of the above-mentioned type
Absorption plant.
Claims (11)
- A kind of 1. watch and clock movement (22；, including pivoting member (24), bearing (28) and the vibration abatement associated with the bearing 82) (30；86), the pivot (26) of the pivoting member is arranged in the bearing (28), and the vibration abatement includes elastic component (32；88), The elastic component is arranged at least one end stone (36；Apply pressure on 36A), the end stone forms the pivot and pivoting member Retainer on the direction of the rotation axis (50) of part, the vibration abatement are arranged to：When pivot is pressed against in the case of a shock During end stone, the vibration abatement can produce restoring force by end stone on the pivot；Characterized in that, the vibration abatement Also include magnetic systems (40；40A, 40B), the magnetic systems include two magnets (42,44) and high magnetic permeability element (46), should High magnetic permeability element is arranged between the two magnets and integral with one of magnet, and the first and second magnets are solid respectively Surely the supporting member (48) of the vibration abatement and the elastic component are arrived, so as to when the elastic component is in the case of a shock by institute State when being subjected to elastic deformation under the pressure that pivot applies to the end stone, occur between the first and second magnets certain relative Apart from upper relative motion；These first and second magnets are arranged to：Between the first and second magnets and with the saturating magnetic of height Property element in association, produce total magnetic attracting force in the first section of the relative distance, and in the relative distance Second section produces total magnetic repulsive force, and the separation distance between the first and second magnets corresponding to second section is more than should Separation distance corresponding to first section；Also, the magnetic systems and the elastic component are arranged so that for whole described Relative distance, the total power applied in the case of a shock by the vibration abatement on the pivot remain restoring force.
- 2. watch and clock movement according to claim 1, it is characterised in that the first and second magnets and the high magnetic permeability element Alignd on the basic direction parallel with the rotation axis of the pivoting member (50), the first and second magnets have in this direction There is opposite polarity.
- 3. watch and clock movement according to claim 2, it is characterised in that the high magnetic permeability element includes plate, and the plate has The central axis essentially coincided with the magnetization axis of the first magnet.
- 4. watch and clock movement according to claim 2, it is characterised in that the high magnetic permeability element and integral with the element The distance between magnet be less than or substantially equal to the magnet and magnetize 1/10th of the length of axis along it.
- 5. the watch and clock movement according to any one of the claims, it is characterised in that the high magnetic permeability element is fixed To the first magnet.
- 6. watch and clock movement according to claim 5, it is characterised in that the magnetic systems and elastic component are arranged so that： In the position of rest of vibration abatement, the elastic component make end stone or fix the end stone base keep rest against the supporting member or The integral base portion with the supporting member, meanwhile, the power applied by the pivot to end stone is less than limiting value, and the limiting value is preferably More than the gravity acted in the pivoting member.
- 7. watch and clock movement according to claim 6, it is characterised in that institute of the elastic component (32) in the vibration abatement Position of rest is stated to be prestressed.
- 8. watch and clock movement according to any one of claim 1 to 4, it is characterised in that the high magnetic permeability element is by iron Or cobalt-based glassy metal is formed.
- 9. watch and clock movement according to any one of claim 1 to 4, it is characterised in that the elastic component is that have first End and the leaf spring (32) at the second end, first end are fixed to the supporting member, and the second end (58) carry the second magnet, in the leaf spring General plane on projection in, the end stone is between first end and the second end.
- 10. watch and clock movement according to any one of claim 1 to 4, it is characterised in that the elastic component is that have two The Lyre spring (88) of branch (89,90), two branched layouts are applied on end stone or on the base of the fixation end stone Plus-pressure；The magnetic systems define the first magnetic systems, and the vibration abatement is also included as any in Claims 1-4 The second magnetic systems that item is limited, described two branches are associated with the first and second magnetic systems respectively, and each self-supporting A magnet is carried, these magnets correspond to second magnet coordinated with corresponding magnet, wherein corresponding magnet pair Ying Yu is fixed to first magnet of the supporting member of the vibration abatement.
- 11. watch and clock movement according to any one of claim 1 to 4, it is characterised in that the pivoting member is escapement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16170213.9 | 2016-05-18 | ||
| EP16170213 | 2016-05-18 |
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| CN107402511A true CN107402511A (en) | 2017-11-28 |
| CN107402511B CN107402511B (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710347592.8A Active CN107402511B (en) | 2016-05-18 | 2017-05-17 | Vibration abatement for watch and clock movement |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10222754B2 (en) |
| EP (1) | EP3246764B1 (en) |
| JP (1) | JP6340114B2 (en) |
| CN (1) | CN107402511B (en) |
| CH (1) | CH712502A2 (en) |
| HK (1) | HK1245425A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112639389A (en) * | 2018-12-18 | 2021-04-09 | Eta瑞士钟表制造股份有限公司 | Device for detecting the geometry of a mobile part of a timepiece |
| CN113848693A (en) * | 2020-06-26 | 2021-12-28 | 伊塔瑞士钟表制造股份有限公司 | Rotating wheel set system for a timepiece movement |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3502803B1 (en) * | 2017-12-19 | 2020-08-05 | Omega SA | Adjustable timepiece assembly |
| JP7171988B2 (en) | 2019-11-05 | 2022-11-16 | ゲイツ・ユニッタ・アジア株式会社 | Cable end processing device and cable end processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006267106A (en) * | 2005-03-23 | 2006-10-05 | Rolex Sa | Shock-absorbing bearing for timepiece |
| JP2011185673A (en) * | 2010-03-05 | 2011-09-22 | Seiko Instruments Inc | Bearing for timepiece, movement, and portable timepiece |
| US20120113767A1 (en) * | 2010-11-09 | 2012-05-10 | Montres Breguet S.A. | Magnetic and/or electrostatic anti-shock device |
| US20120112589A1 (en) * | 2010-11-09 | 2012-05-10 | Montres Breguet S.A. | Magnetic and/or electrostatic pivot |
| CN102540857A (en) * | 2010-12-21 | 2012-07-04 | 斯沃奇集团研究和开发有限公司 | Shock-absorbing bearing for a rotating mobile of a clock movement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2541124A1 (en) * | 1975-09-16 | 1977-03-24 | Rheinfelder Uhrteile Fab | Timepiece balance shaft shock absorbing bearing - has apertured inner jewel and flat outer jewel fitting into slip ring |
| US4308605A (en) * | 1980-02-12 | 1981-12-29 | Ayer Henry E | Balance wheel assembly |
| US4409576A (en) * | 1982-02-03 | 1983-10-11 | Polaroid Corporation | Method and apparatus which change magnetic forces of a linear motor |
| JP2015152402A (en) * | 2014-02-13 | 2015-08-24 | セイコーインスツル株式会社 | Magnet bearing structure, movement, and watch |
| EP3081997A1 (en) * | 2015-04-16 | 2016-10-19 | Montres Breguet S.A. | Magnetic shock-absorber for timepiece arbour |
| EP3106934A1 (en) * | 2015-06-16 | 2016-12-21 | Montres Breguet S.A. | Magnetic device for pivoting an arbour in a clock movement |
| CH711220A2 (en) * | 2015-06-16 | 2016-12-30 | Montres Breguet Sa | A magnetic device for pivoting a shaft in a watch movement. |
-
2017
- 2017-04-19 CH CH00522/17A patent/CH712502A2/en not_active Application Discontinuation
- 2017-04-19 EP EP17167110.0A patent/EP3246764B1/en active Active
- 2017-05-10 US US15/591,209 patent/US10222754B2/en active Active
- 2017-05-11 JP JP2017094417A patent/JP6340114B2/en active Active
- 2017-05-17 CN CN201710347592.8A patent/CN107402511B/en active Active
-
2018
- 2018-04-09 HK HK18104614.8A patent/HK1245425A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006267106A (en) * | 2005-03-23 | 2006-10-05 | Rolex Sa | Shock-absorbing bearing for timepiece |
| JP2011185673A (en) * | 2010-03-05 | 2011-09-22 | Seiko Instruments Inc | Bearing for timepiece, movement, and portable timepiece |
| US20120113767A1 (en) * | 2010-11-09 | 2012-05-10 | Montres Breguet S.A. | Magnetic and/or electrostatic anti-shock device |
| US20120112589A1 (en) * | 2010-11-09 | 2012-05-10 | Montres Breguet S.A. | Magnetic and/or electrostatic pivot |
| CN102540857A (en) * | 2010-12-21 | 2012-07-04 | 斯沃奇集团研究和开发有限公司 | Shock-absorbing bearing for a rotating mobile of a clock movement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112639389A (en) * | 2018-12-18 | 2021-04-09 | Eta瑞士钟表制造股份有限公司 | Device for detecting the geometry of a mobile part of a timepiece |
| CN112639389B (en) * | 2018-12-18 | 2022-08-16 | Eta瑞士钟表制造股份有限公司 | Device for detecting the geometry of a mobile part of a timepiece |
| US11960246B2 (en) | 2018-12-18 | 2024-04-16 | Eta Sa Manufacture Horlogere Suisse | Geometric inspection device for horological mobile components |
| CN113848693A (en) * | 2020-06-26 | 2021-12-28 | 伊塔瑞士钟表制造股份有限公司 | Rotating wheel set system for a timepiece movement |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170336761A1 (en) | 2017-11-23 |
| JP2017207485A (en) | 2017-11-24 |
| CH712502A2 (en) | 2017-11-30 |
| EP3246764B1 (en) | 2019-01-23 |
| HK1245425A1 (en) | 2018-08-24 |
| JP6340114B2 (en) | 2018-06-06 |
| EP3246764A1 (en) | 2017-11-22 |
| CN107402511B (en) | 2019-08-09 |
| US10222754B2 (en) | 2019-03-05 |
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